(Study Material) for Pharmacognosy there are more parts about this topic go and find out from our channel. hope those are helps you in pharma related exams.

Pharmacognosy was used to define the branch of medicine or commodity sciences (Warenkunde in German)

which deals with drugs in their crude, or unprepared,form.
Crude drugs are the dried, unprepared material of plant, animal or mineral origin, used for medicine.
The study of these materials under the name pharmakognosie was first developed in German-speaking areas of Europe,
while other language areas often used the older term materia-medica taken from the works of Galen and Dioscorides.
In German the term drogenkunde "science of crude drugs" is also used synonymously.
Pharmacognosy is the study of plants or other natural sources as a possible source of drugs.
The American Society of Pharmacognosy defines pharmacognosy as "the study of the physical, chemical, biochemical and biological properties of drugs,
Drug substances or potential drugs or drug substances of natural origin as well as the search for new drugs from natural sources"